PRISTINA, May 26, 2000 -- (Reuters) Aggressors fired shots into a Russian military base in Kosovo for a second straight night, NATO-led peacekeepers said on Thursday.

Officers in the KFOR peacekeeping force believe the attacks are in revenge for a fight involving Russian soldiers earlier this week in which a former Kosovo guerrilla commander was injured.

"KFOR in conjunction with UNMIK (United Nations Mission in Kosovo) police will respond with reasonable and appropriate reaction to stop such extremist action," KFOR spokesman Lieutenant Commander Philip Anido said in a statement.

Several shots were fired into the base in the town of Kijevo, southwest of the provincial capital Pristina, on Wednesday evening, KFOR said. There were no injuries or damage.

In the early hours of Wednesday morning, attackers shot at the base and fired in two anti-tank rockets, slightly wounding two soldiers. Russian soldiers also came under fire on several other occasions overnight from Tuesday into Wednesday, KFOR said.

The attacks followed an incident on Tuesday afternoon in which Russian soldiers fought with Ramush Haradinaj, a local politician who was formerly a commander of the ethnic Albanian Kosovo Liberation Army. Haradinaj sustained cuts and bruises in the incident.

According to KFOR, the Russians stopped Haradinaj's car at a checkpoint near the town of Malisevo, found his weapons permit had expired and confiscated two weapons. Haradinaj tried to flee, attacked a soldier and was "subdued" by KFOR personnel.